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eISSN: 2581-9615 || CODEN: WJARAI || Impact Factor 8.2 ||  CrossRef DOI

Research and review articles are invited for publication in March 2026 (Volume 29, Issue 3) Submit manuscript

Structural characteristics of cellulose esters with different degrees of substitution

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  • Structural characteristics of cellulose esters with different degrees of substitution

Michael Ioelovich *

Designer Energy, Rehovot, 7670504, Israel.
 
Research Article
World Journal of Advanced Research and Reviews, 2022, 15(01), 730-738
Article DOI: 10.30574/wjarr.2022.15.1.0772
DOI url: https://doi.org/10.30574/wjarr.2022.15.1.0772
 
Received on 26 June 2022; revised on 27 July 2022; accepted on 29 July 2022
 
In this article, structural characteristics of amorphous mono-, di-, and tri-substituted esters of cellulose have been studied. These esters were synthesized under homogenous conditions using anhydrides of various aliphatic acids. The specific gravity of the highly substituted samples was measured by a pycnometric method in the aqueous medium. To calculate the molar, Van der Waals, and free volumes, as well as the packing coefficient of amorphous esters, the method of additive contributions of partial volumes of atoms and atom groups in the volumes of polymers was used. Based on the molar volume, also values of specific gravity of cellulose esters were calculated. The coincidence of calculated and experimental characteristics was shown. In addition, the relationship between glass transition temperature and free volume was found for the esters of cellulose. The theoretical equations were derived, which provide predicting the structural characteristics of cellulose esters with different degrees of substitution.
 
Esters of cellulose; Substitution degree; Structural characteristics; Study; Calculations
 
https://wjarr.com/sites/default/files/fulltext_pdf/WJARR-2022-0772.pdf

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Michael Ioelovich. Structural characteristics of cellulose esters with different degrees of substitution. World Journal of Advanced Research and Reviews, 2022, 15(1), 730-738. Article DOI: https://doi.org/10.30574/wjarr.2022.15.1.0772

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